小例子蕴含着到力量，我希望自己有改变自己生活的能力,自己有主宰自己命运的能力...
备注：这个例子有问题。
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> </head> <body> <div> <h1 onclick="test()">test</h1> </div> <script> var arrs = []; function test(){ var data = [ { name: '中国', children: [ { name: '教第三节课', }, { name: '教呼呼', children: [ { name: '大一', children: [ { name: '课程1', children: [ { name: '1231' }, { name: '121' } ] }, { name: '课程2', children: [ { name: '1232' }, { name: '122' } ] }, { name: '课程3', children: [ { name: '1233' }, { name: '123' } ] }, ] } ] }, { name: '活动', children:null } ] } ]; getArray(data,'活动'); for(var i in undefined){ alert(123); } } function getArray(data,name) { for (var i in data) { if (data[i].name == name) { break; } else { getArray(data[i].children, name); } } } </script> </body> </html>